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The skeletal system consists of bone, cartilage, and ligaments. The skeleton has 206 bones. It provides a framework, provides protection to the vital organs, provides locomotion, and it does this for attachment of bones, which is the soft tissue attachments. It provides production. Production takes place in the bones. It produces some red blood cells in some of the bones. And it also provides storage. And storage takes place also in the bones, where we can store calcium, and phosphorus, to be released into the system when needed.
Now, we're going to look at the names of some of the bones within the skeleton. We'll start at the top of the body. Here we have the cranium. This is what protects the skull and the brain. We have the jaw. Now, as we move down the skeleton, the bone along here... This one here is called the clavicle. You have two clavicles, one each side. If I turn our skeleton around, you can see, at the back, we have scapula. There are two of this scapula. We're going to see the bones of the spine. These spinal bones are called vertebrae. We turn the skeleton back around again. We can see now we have the rib cage. There are seven pairs of ribs, two cartilaginous ribs, and then three floating ribs. That gives us a total of 12. Here we have the humerus. And if I lift this up here, we have the radius and the ulna. We always remember the radius as being thumb-side. Now, we move to the pelvis. See the pelvis here, and then attached to the pelvis, we have the femur, which is a nice, long bone. At the bottom end of the femur, we then have the tibia, which is the larger bone, and the fibula along the outside. We then have the bones of the feet.